Overall Green Earthquake alert in United States on 20 Dec 2022 10:34 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 6.37 in United States on 20 Dec 2022 10:34 UTC

2022-12-20 10:39 message from NTWC

Key information extracted from original GTS message :

Evaluation

An earthquake has occurred a TSUNAMI is not expected
Preliminary earthquake parameters
The following parameters are based on a rapid preliminary assessment of the earthquake and changes MAY occur
Magnitude 6.1
Origin time 0134 akst dec 20.2022 0234 pst dec 20 2022 1034 UTC dec 20
Coordinates 40.5 north 124 5 west
Depth 1 miles
Location 25 miles sw of eureka california 215 miles nw of san francisco california additional information and next update
Further information will be issued by the UNITED STATES geological survey (earthquake
Usgs
Gov) or the appropriate regional seismic network
This will be the only u s national TSUNAMI warning center message issued for this event unless additional information becomes available

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)

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